Connecting The Sensor; Safety Information; Sensor Connections; Figure 3: Sensor Pcb Connections - Pentair Goyen Mecair FFD Installation And Operation Manual

REQUIRED TOOLS
AND EQUIPMENT
Prepare the stack or duct to fit the sensor to as follows:
1. Drill a hole with an ID of at least ∅19 mm (¾") suitable for a ½" threaded sensor in the stack wall where the
sensor unit is to be located.
2. Fit a suitable socket [6] (based on the sensor-to-stack connection [7]). This must be securely welded to the stack.
The socket [6] should be installed at a slight upward angle, so that the probe rod points downward allowing any
condensate to drain off into the stack.
NOTE: If the duct is not vertical, take care to ensure that the socket is slightly angled and does not point upward
to prevent water ingress. For more information on sensor location and pre-installation preparations
please contact Goyen | Mecair.
Alternatively, sockets can also be mounted on preformed backing plates, which are then mounted to the stack wall.
Next fit the sensor to the stack/duct as follows:
3. Referring to Figure 2 above, insert the sensor into the socket [6] and secure it by turning the hexagonal sensor
body [8] using a suitable spanner.
NOTE: Ensure the cable glands [11] are facing downward and that the grounding strap (earth wire) securely
connects the sensor to the stack/duct via the earth stud assembly at the rear of its enclosure [9].
4. Tighten the lock nut [3] against the socket [6] to secure the sensor in position.

5.4 CONNECTING THE SENSOR

5.4.1 Safety Information

WARNING!
Ensure the cabling is not connected to the control unit power during wiring.
CAUTION!
Do NOT try to rotate the sensor by its enclosure as this can seriously damage the sensor.

5.4.2 Sensor Connections

The sensor connections can be found below the raised control panel which carries the sensor controls and status
indicator. Refer to Figure 3 below for their location and the type of connectors.
Connect the power supply last, leave the cable gland (on the right) closest to the power connector free for this
purpose (see also Figure 6 on page 13).

Figure 3: Sensor PCB connections

INSTALLATION AND OPERATION MANUAL – OWNER'S RECORD FFD MANUAL – FILTER FAILURE DETECTOR
Standard toolkit
Spanner set (22/30 mm A/F) or adjustable spanner
Drilling, welding tools and consumables
11